Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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1.
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Which of the following is a primary source of data?
a. | an article in a magazine | b. | a database | c. | conducting an
experiment to test the effectiveness of a new medication | d. | an entry from an
on-line encyclopedia |
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2.
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Which of the following is a secondary source of data?
a. | conducting a survey among your classmates | b. | conducting an
experiment to measure the effects of air pollution on plant growth | c. | data collected 100
years ago by the Canadian government | d. | counting the makes of cars in a mall parking
lot |
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3.
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For which of the following would a primary data gathering technique be
used?
a. | City council wants to know if residents in the community are satisfied with garbage
pickup. | b. | You want to find out MuchMusic’s all-time top music videos. | c. | A student wants to
find out how many people attended Oscar-winning movies in the years from 1990 to
2000. | d. | A historical society wants to compare the numbers of Canadian wheat farmers in 1900,
1930, 1960, and 1990. |
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4.
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Which of the following is not an example of random sampling?
a. | Use a random number generator to pick 10% of the players in each division of a hockey
league. | b. | Use a randomly generated number between 1 and 10 to pick a name on a list, and then
select every 8th person on the list. | c. | Ask every 10th person entering a mall for an
opinion on government spending on health care. | d. | Write names on slips of paper, and then pick
the names out of a hat, making sure the pieces of paper are well
mixed. |
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5.
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For which of the following is a sample suitable?
a. | Find the most common make of car in the school parking lot. | b. | Find your
family’s favourite food. | c. | Find the most popular video game among grade 9
students in your class. | d. | Find the favourite video game among grade 9
students in Canada. |
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6.
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Which of the following is a systematic random sample?
a. | A name is randomly selected from a list of a store’s customers and every 10th
person is selected before and after it. | b. | A Member of Parliament randomly selects phone
numbers from a city directory to survey citizen’s opinions on government
taxation. | c. | The principal selects the same fraction of students from each class for a
survey. | d. | The Human Resources department of Acme Manufacturing Company sends out surveys to 50
employees randomly selected from the entire list of employees. |
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7.
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Which one of the following is a stratified random sample?
a. | The CEO of Ace Manufacturing Company selects the employees from one branch to
survey. | b. | The CEO of a company selects the same fraction of employees from each branch to
survey. | c. | A department store randomly selects a name from an alphabetic list of customers and
selects every 10th customer before and after that name to conduct a survey. | d. | The school principal
interviews one class to survey student views on dress code. |
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8.
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A survey of favourite colours was conducted on 150 grade 9 students with the
following results. Colour | Red | Blue | Green | Pink | Yellow | Number | 60 | 50 | 20 | 5 | 15 | | | | | | |
There are 500 students in grade 9. How many
would you expect to choose blue as their favourite colour?
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9.
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The table shows the height of a bean plant in the first week after it
germinated. Predict the height of the bean plant on the eighth day. Day | 1 | 2 | 3 | 4 | 5 | 6 | 7 | Height (cm) | 0.9 | 1.8 | 2.6 | 3.6 | 4.4 | 5.5 | 6.1 | | | | | | | | |
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10.
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The motion on this distance-time graph can be described as follows. 
a. | The person is not moving. | b. | The person is walking toward the motion
detector. | c. | The person is walking away from the motion detector. | d. | The person is
slowing down. |
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11.
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Before a fishing derby began, a group of friends made the predictions below.
This table shows the numbers of fish caught. Whose prediction was correct? | Number of Fish
Caught | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | | Caught by
This Many Entrants | 18 | 14 | 13 | 8 | 4 | 4 | 2 | 0 | 1 | | | | | | | | | | |
a. | Heather predicted that most entrants would not catch any fish. | b. | George predicted
that most entrants would catch only 1 fish. | c. | Alun predicted that most entrants would catch 5
or more fish. | d. | Hans predicted that most entrants would catch less than 3
fish. |
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12.
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Hobson’s Company surveyed its 2000 customers by generating 200 random
numbers between 1 and 2000, and then selecting names from the customer list corresponding to these
numbers. This is an example of
a. | systematic random sampling | c. | non-random
sampling | b. | stratified random sampling | d. | simple random sampling |
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13.
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Naomi is conducting a survey to determine if the school cafeteria should stop
selling pop. From what population should she take her sample?
a. | adults who do not have any kids | b. | people who work at a pop
factory | c. | people who are allergic to pop | d. | students and staff who eat lunch in the
cafeteria |
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14.
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A sample could be biased if it is
a. | too small | b. | only based on one gender and age
group | c. | not randomly drawn | d. | all of the
above |
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15.
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Students in a grade 9 phys-ed class were surveyed about how often they exercise
in a week. | Time | Frequency | | Every day | 10 | | Every other day | 6 | | Only on weekends | 14 | | |
If there are 1000 students in the school, how
many do you expect exercise every day?
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